South Boston, United States
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Time in South Boston, United States right now
South Boston is a major city in Massachusetts, United States. Clocks follow the America/New_York time zone: UTC-5 (EST) on January 15 and UTC-4 (EDT) on July 15, 2026. Other dates can use a different offset; see the clock changes below.
About 571,281 people set their clocks to this time in South Boston alone.
Live clock for South Boston
Local times come from your browser's IANA time zone data.
South Boston time compared with UTC
South Boston runs UTC-5 in January and UTC-4 in July. When it is 12:00 UTC the clock in South Boston reads 07:00 in January and 08:00 in July.
These examples use January 15 and July 15, 2026. Where clocks change, other dates can use a different offset. Use the live converter for your exact date.
| UTC | South Boston in January | South Boston in July |
|---|---|---|
| 00:00 | 19:00 previous day | 20:00 previous day |
| 03:00 | 22:00 previous day | 23:00 previous day |
| 06:00 | 01:00 | 02:00 |
| 09:00 | 04:00 | 05:00 |
| 12:00 | 07:00 | 08:00 |
| 15:00 | 10:00 | 11:00 |
| 18:00 | 13:00 | 14:00 |
| 21:00 | 16:00 | 17:00 |
When the clocks change in South Boston
These are the recorded clock changes for South Boston in 2026 and 2027. Each row gives the date, the reading the clock shows as it changes, and what it jumps to.
| Date | Change | Clocks | New offset |
|---|---|---|---|
| Sunday, March 8, 2026 | Forward 1 hour | 02:00 to 03:00 | UTC-4 |
| Sunday, November 1, 2026 | Back 1 hour | 02:00 to 01:00 | UTC-5 |
| Sunday, March 14, 2027 | Forward 1 hour | 02:00 to 03:00 | UTC-4 |
| Sunday, November 7, 2027 | Back 1 hour | 02:00 to 01:00 | UTC-5 |
Computed from the IANA time zone database, the same source your operating system uses. Dates in future years follow the rules in force today; daylight saving law is set by governments and does change, sometimes at a few months' notice.
Time difference from South Boston
| City | In January | In July |
|---|---|---|
| New York City | the same time as South Boston | the same time as South Boston |
| London | 5 hours ahead of South Boston | 5 hours ahead of South Boston |
| Paris | 6 hours ahead of South Boston | 6 hours ahead of South Boston |
| Dubai | 9 hours ahead of South Boston | 8 hours ahead of South Boston |
| Mumbai | 10:30 hours ahead of South Boston | 9:30 hours ahead of South Boston |
| Singapore | 13 hours ahead of South Boston | 12 hours ahead of South Boston |
| Tokyo | 14 hours ahead of South Boston | 13 hours ahead of South Boston |
| Sydney | 16 hours ahead of South Boston | 14 hours ahead of South Boston |
| Los Angeles | 3 hours behind South Boston | 3 hours behind South Boston |
| Sao Paulo | 2 hours ahead of South Boston | 1 hour ahead of South Boston |
Sunrise and sunset in South Boston through the year
| Time of year | Sunrise | Sunset | Day length |
|---|---|---|---|
| March equinox (about Mar 20) | 06:46 | 18:56 | 12 h 09 m |
| June solstice (about Jun 21) | 05:07 | 20:24 | 15 h 17 m |
| September equinox (about Sep 22) | 06:31 | 18:41 | 12 h 10 m |
| December solstice (about Dec 21) | 07:10 | 16:14 | 9 h 05 m |
Computed for South Boston's own coordinates with standard NOAA solar equations. Full twilight and golden hour detail lives on the South Boston sunrise and sunset page.
Related city clocks
More cities in United States:
- New York City
- Los Angeles
- Brooklyn
- Chicago
- Queens
- Houston
- Phoenix
- Philadelphia
- San Antonio
- Manhattan
- San Diego
- The Bronx
Cities elsewhere on the exact same clock (America/New_York):
Common questions about time in South Boston
What time zone is South Boston in?
South Boston uses the America/New_York time zone: UTC-5 (EST) in January and UTC-4 (EDT) in July.
Does South Boston change its clocks in 2026?
Yes. In 2026 the clocks go forward on Sunday, March 8 at 02:00, and back on Sunday, November 1 at 02:00. The table above shows the size of each change and the resulting UTC offset.
What is the time difference between South Boston and New York City?
In January, New York City is the same time as South Boston; in July it is the same time as South Boston. The table above lists more cities.
City data from GeoNames (CC BY 4.0). Live times come from your browser's IANA time zone data; sun times use standard NOAA solar equations at South Boston's coordinates.